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Train hits parade truck, killing 4

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Train hits parade truck, killing 401:08

Hayden was driving the last flatbed truck in the parade and was crossing the tracks when an eastbound Union Pacific train slammed into the float, killing Marine Corps Chief Warrant Officer 3 Gary Stouffer, 37; Army Sgt. Maj. Lawrence Boivin, 47; Army Sgt. Joshua Michael, 34; and Army Sgt. Maj. William Lubbers, 43.

At least 12 other people were injured.

The National Transportation Safety Board said in December that the grade-crossing warning system, which consists of a bell, lights and a gate, operated as designed, giving a 20-second warning of the train's arrival. The truck entered the crossing and the gate lowered, tipping over flag stands on the float.